EZ-GO S4 MadJax LED Ultimate Plus Light Kit: What You Get
By GOLFCARTSTUFF.COM™ | Golf Cart Wheels, Tires, Lights | Published: 2026-10-28
Category: Product Reviews
The MadJax Ultimate Plus Light Kit for EZ-GO S4 (2012-up) bundles headlights, brake lights, turn signals, horn, voltage reducer, and USB charging. Here's what to consider before buying.
Quick Answer
If you own an EZ-GO S4 (2012-up) and want a complete lighting upgrade without buying separate components, the MadJax Ultimate Plus Light Kit is a strong choice. It includes headlights, brake lights, turn signals, horn, voltage reducer, and USB charging—all in one package.
What the Kit Includes
The MadJax Ultimate Plus Light Kit is designed to simplify adding or upgrading your cart's lighting. It comes with LED headlights (high/low), tail lights with brake and turn signals, a horn, and a built-in voltage reducer. A dual-USB charging port is also included, so you can keep devices powered while you ride.
Because the kit bundles these components, you avoid the hassle of matching separate parts. That's especially useful if you're starting from a cart with no existing lighting or if you want to replace an older, dimmer setup.
Fit and Compatibility
This kit is made for EZ-GO Express S4 models from 2012-up, covering both gas and electric versions. Before ordering, double-check your cart's year and model to confirm the kit matches your specific S4 variant.
If your S4 is older than 2012, this kit won't fit. You'll need to look for a light kit designed for your model year instead.
Trade-Offs to Consider
The main trade-off is price: this is a premium kit, so it costs more than basic LED light bars or simple headlight-only kits. However, the included voltage reducer and USB port add value, especially if you plan to add accessories later.
Another consideration is installation complexity. Because the kit includes turn signals, brake lights, and a horn, wiring takes more time than a simple headlight kit. If you're not comfortable with electrical work, you may want a professional to install it.
Decision Rules: Is This Kit Right for You?
- If your cart is an EZ-GO S4 (2012-up): This kit is designed to fit your model year. Confirm your cart's exact year and model before ordering. Check your cart's serial number to verify the year.
- If you want a complete lighting upgrade: Choose this kit if you need headlights, brake lights, turn signals, and a horn all in one package.
- If you plan to add accessories later: The built-in voltage reducer and USB port make it easier to power phones, GPS, or other 12V accessories without a separate reducer. Consider future accessory needs before buying.
- If you're on a tight budget: This kit is more expensive than basic light kits. Look for a headlight-only kit if you don't need the extra features. Set a budget and compare features.
- If you're not comfortable with wiring: Installation involves multiple connections. Plan to hire a professional if you're not experienced with 12V electrical systems. Factor installation cost into your total budget.
Product Facts
- EZ-GO S4 MadJax® LED Ultimate Plus Light Kit (Years 2012-Up): The MadJax Ultimate Plus Light Kit includes a built-in voltage reducer, turn signals, brake lights, high/low headlights, horn, and dual-USB charging port. You get a complete lighting and accessory solution in one kit, which simplifies installation and avoids buying separate components.
EZ-GO S4 MadJax® LED Ultimate Plus Light Kit (Years 2012-Up)
Who Should Choose This Kit?
Best for
- Owners of EZ-GO S4 (2012-up) who want a complete, integrated lighting system
- Riders who frequently drive at night and need reliable headlights and brake lights
- Those who want to power phones or accessories without adding a separate voltage reducer
Not for
- Owners of older EZ-GO models (pre-2012) that don't match the fitment
- Budget-focused buyers who only need basic headlights
- Those who prefer a simple plug-and-play installation with minimal wiring
